• Title/Summary/Keyword: Brasica juncea C.

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Growth Characteristics and Germanium Absorption of Brasica juncea C. with Different Types of Germanium Compounds in Hydroponic Cultivation (게르마늄 종류별 양액재배시 갓의 생육특성 및 게르마늄 흡수)

  • Kang, Se-Won;Seo, Dong-Cheol;Jeon, Weon-Tai;Kang, Seok-Jin;Lee, Seong-Tae;Sung, Hwan-Hoo;Choi, Ik-Won;Kang, Ui-Gum;Kim, Hyun-Ook;Heo, Jong-Soo;Cho, Ju-Sik
    • Korean Journal of Soil Science and Fertilizer
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    • v.44 no.3
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    • pp.465-472
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    • 2011
  • To investigate the effect of inorganic ($GeO_2$) and organic (Ge-132) germanium treatment on Brasica juncea C. plant, growth characteristics and Ge contents were examined with various inorganic or organic germanium treatments (0, 5, 10, 25, 50, 75 and $100mg\;L^{-1}$), respectively. Brasica juncea C. growth did not much inhibited until Ge $10mg\;L^{-1}$ concentration under both Ge-132 and $GeO_2$ treatments as compared to control. On the other hand, at Ge concentration higher than $25mg\;L^{-1}$ concentration, Brasica juncea C. growth was inhibited under both Ge-132 and $GeO_2$ treatments. Under treatment of $GeO_2$, length of root and shoot slightly increased until $5mg\;L^{-1}$ concentration and dry weight slightly increased until $10mg\;L^{-1}$ concentration. Under treatment of Ge-132, length of root and shoot slightly increased until $10mg\;L^{-1}$ concentration and dry weight slightly increased until $25mg\;L^{-1}$ concentration. Total Ge contents in Brasica juncea C. early seedlings with $GeO_2$ treatment were a bit higher than those with Ge-132 treatment. Germanium was primarily accumulated in the roots (77%) with organic Ge (Ge-132) treatments, whereas Ge was primarily accumulated in the leaf (70%, respectively) with $GeO_2$ treatments. The Ge uptake rates in inorganic Ge treatments were slightly high than those in organic Ge treatments. Under inorganic Ge treatment with $2.5mg\;L^{-1}$, about 3% of Ge was accumulated into plant and distribution in leaf and root was 84.8% and 15.2%, respectively. Under organic Ge treatment with $2.5mg\;L^{-1}$, about 2.6% of Ge was accumulated into plant and distribution in leaf and root was 66.4% and 33.6%, respectively.